'Lewdness' in the Bible

You must not have sexual intercourse with both a woman and her daughter; you must not take as wife either her son's daughter or her daughter's daughter to have intercourse with them. They are closely related to her -- it is lewdness.

Do not profane your daughter by making her a prostitute, so that the land does not practice prostitution and become full of lewdness.

If a man has sexual intercourse with both a woman and her mother, it is lewdness. Both he and they must be burned to death, so there is no lewdness in your midst.